Microstructure of Modified Cu0.4 Ni0.4 Co0.4 Mn1.8 O4 Ceramics for Temperature Sensor Electronics

摘要

It is shown that the micro and macro modified $Cu_{0,4}Ni_{0,4}Co_{0,4}Mn_{1,8}O_{4}$ ceramics are single-phase (contains only the main cubic spinel phase). Different modifications of ceramics are displayed in the size and shape of pores. In micro ceramics there is a more intensive growth of the contact area between the grains, increases the specific surface area. The grain is combined into agglomerates. One peak with nanopore with radius centered near ~ 2 nm is peculiar to macro ceramics. Double maximum is characteristic to micro ceramics (~ 2.3 and 5.5 nm).